Emitter devices are those which send messages to the Zibase. For example : door contact, temperature sensor or presence detector.

For emitter devices, the <value> parameter defines the value you want to extract from the message (each item send severals values at once like: protocol, battery status, Id...).

For these devices, <value> can be either an arbitrary value you want to get upon receiving a message (see example below for door contact), or one of the following tags if you want a particular value, depending on what the device send:

rf : get the protocol (eg: "chacon", "x2d868")

noise : get the RF signal noise (in general around 2000, the lower value the better environment for RF)

Like scenario, a variable does not bind a device but one of the 31 internal "public" variables of the Zibase. You can use them to store and get values from. A variable can contain only a 16 bits signed integer. That is to say an integer from -32768 to 32768.

Variables can be used both to get and to set a value. The <value> parameter is not used.